2024 Facts for Drivers PDF
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Summary
This document contains questions and answers about driving, dealing with various aspects of driving practices and road safety for professional drivers. It addresses topics like ABS, following distance, maintaining traction, and recovering from skids, etc.
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Q. Can ABS provide shorter stopping distances? A. ABS cannot necessarily shorten stopping distance. ‘The purpose of ABS is to help the driver maintain control during braking by avoiding wheel lock-up and an out-of-control skid. ABS is not designed to offset the risks of driving to...
Q. Can ABS provide shorter stopping distances? A. ABS cannot necessarily shorten stopping distance. ‘The purpose of ABS is to help the driver maintain control during braking by avoiding wheel lock-up and an out-of-control skid. ABS is not designed to offset the risks of driving too fast for conditions. Will ABS prevent jackknifing? If the driver has adjusted speed to the road conditions, ABS should be helpful in preventing jackknifing. Tests have shown that jackknifing occurs most rapidly when the tractor drive wheels lock- up. To the extent that ABS reduces drive wheel lock-up, it has the potential to reduce jackknifing. A driver should maintain a following distance of how much on the open highway? Safety experts recommend at least a 4-second following distance when driving under 40 mph, with following distance increasing as speed increases. The CDL Driver's Manual recommends 1 second per 10 feet of vehicle length, with an additional second added if over 40 mph. In addition, many states have laws regulat- ing the minimum distance at which a truck may follow another vehicle, although these distances are rarely posted (the driver Is always responsible for knowing these state laws). How does a bumpy or choppy road surface affect stopping distance? Stopping is controlled by friction. When the vehicle ts traveling over an uneven surface, some tires may get momentarily over- loaded and others momentarily underloaded; some will have traction, some will not. Either condition causes the brakes to operate at less than maximum efficiency. How does the professional driver keep traction on slippery streets? To keep traction on a slippery street, the driver should drive at a low rate of speed with gradual application of accelerator and brakes and no abrupt turning. Adequate tread depth on the tires is a must. How does a driver attempt to recover from a skid? To recover from a skid, the driver should release the brakes and oF
